I've installed and configured xorg on arch (using these instructions) and kdebase. I've added dbus and kdm to daemons. After the login with kdm, but before finishing loading the deskop all stops and i can only move cursor by mouse and nothing happens. This solution on the wiki doesn't work for me (because I don't have Nvidia card?). My graphic card is Intel Mobile 4 Series Chipset Integrated Graphics Controller (rev 07).